A306947 - cp's OEIS frontend

A306947 Expansion of e.g.f. Product_{k>=0} 1/(1 - x^(2^k)/2^k).

n	a(n)
0	1
1	1
2	3
3	9
4	48
5	240
6	1620
7	11340
8	103320
9	929880
10	9865800
11	108523800
12	1362160800
13	17708090400
14	253361908800
15	3800428632000
16	63340477200000
17	1076788112400000
18	19769829743664000
19	375626765129616000
20	7640832869429760000
21	160457490258024960000
22	3559701523615997760000

[1, 1, 3, 9, 48, 240, 1620, 11340, 103320, 929880, 9865800, 108523800, 1362160800, 17708090400, 253361908800, 3800428632000, 63340477200000, 1076788112400000, 19769829743664000, 375626765129616000, 7640832869429760000, 160457490258024960000, 3559701523615997760000]

cp's OEIS Frontend

A306947 Expansion of e.g.f. Product_{k>=0} 1/(1 - x^(2^k)/2^k).

Table of values

List of values